(Win7 x64 VS2010)
こんにちは.
I think there is a problem in KeyInput.
MakeKeyInput() -> SetActiveKeyInput() -> DrawKeyInputString()
I typed some letters and set selected text area.
And I typed some letters again.
Then, other letters are changed themselves.
(video for understanding (URL) : youtu.be/FdWoyy5KUz4)
Could you check this problem?